Motor awareness without perceptual awareness

Neuropsychologia. Special Issue 43 (2):227-237 (2005)
The control of action has traditionally been described as "automatic". In particular, movement control may occur without conscious awareness, in contrast to normal visual perception. Studies on rapid visuomotor adjustment of reaching movements following a target shift have played a large part in introducing such distinctions. We suggest that previous studies of the relation between motor performance and perceptual awareness have confounded two separate dissociations. These are: (a) the distinction between motoric and perceptual representations, and (b) an orthogonal distinction between conscious and unconscious processes. To articulate these differences more clearly, we propose a new measure of motor awareness, based on subjects' ability to reproduce the spatial details of reaching movements they have just made. Here we focus on the dissociation between motor awareness and perceptual awareness that may occur when subjects make rapid visuomotor adjustments to reaching movements following a target shift. In experiment 1, motor awareness was dissociated from perceptual awareness of a target shift during reaching movement. Participants' reproduction of movement endpoints following visuomotor adjustment was independent of whether they saw the target shift or not. Experiment 2 replicated this result, and further showed that neither motor awareness nor motor performance were disrupted by TMS over the parietal cortex. The neural mechanisms underlying motor awareness, and the implications for theories of consciousness, are discussed.
Keywords *Awareness  *Motor Processes  *Parietal Lobe  *Perceptual Motor Coordination  *Perceptual Motor Processes
Categories (categorize this paper)
 Save to my reading list
Follow the author(s)
Edit this record
My bibliography
Export citation
Find it on Scholar
Mark as duplicate
Request removal from index
Revision history
Download options
Our Archive

Upload a copy of this paper     Check publisher's policy     Papers currently archived: 32,634
External links

Setup an account with your affiliations in order to access resources via your University's proxy server
Configure custom proxy (use this if your affiliation does not provide a proxy)
Through your library
References found in this work BETA

No references found.

Add more references

Citations of this work BETA
A Question of Intention in Motor Imagery.Carl Gabbard, Alberto Cordova & Sunghan Lee - 2009 - Consciousness and Cognition 18 (1):300-305.
Embodiment, Spatial Categorisation and Action.Y. Coello & Y. DelevoYeturrell - 2007 - Consciousness and Cognition 16 (3):667-683.

Add more citations

Similar books and articles
Self-Awareness and Action.Sarah-Jayne Blakemore & Chris Frith - 2003 - Current Opinion in Neurobiology. Special Issue 13 (2):219-224.
Added to PP index

Total downloads
37 ( #160,204 of 2,236,126 )

Recent downloads (6 months)
1 ( #446,600 of 2,236,126 )

How can I increase my downloads?

Monthly downloads
My notes
Sign in to use this feature